The present invention provides a therapeutic agent for regenerating a dentin-pulp complex, containing a basic fibroblast growth factor and/or a homolog thereof as an active ingredient. The present invention also provides a pulp-capping agent containing a basic fibroblast growth factor and/or a homolog thereof as an active ingredient.本發明係提供一種包含鹼性纖維母細胞增殖因子及/或其同系物以作為有效成分之象牙質-齒髓複合物之再生治療劑。又,本發明亦提供一種包含鹼性纖維母細胞增殖因子及/或其同系物以作為有效成分之覆髓劑。